Learn how to use Linux help commands like apropos, whatis, man, info, and --help to discover commands and learn their usage.

Many Linux commands can do more than you might think. The usermod command is one such command, and it can be very handy.

As Terry Lambert, the developer behind Linux ancestor Unix, once said, "It is not Unix's job to stop you from shooting your foot. If you so choose to do so, then it is Unix's job to deliver Mr. Bullet ...

You can check user groups in Linux with commands like groups, id, getent, and /etc/group to manage permissions easily.

Linux may be easier to use than ever before, but you'll still need to open up a command line from time to time. That includes managing your storage, which isn't exactly easy to do in Linux, even with ...

Working on the command line is an integral part of being a successful Linux user. You need to have a firm grasp of certain commands to work effectively. There are even certain commands that you must ...

Whether your Linux box has hundreds of users or just one account for you and one for your dog it is important to understand how Linux user accounts work. There are GUI tools for this within GNOME and ...

Howdy all, so I have fairly extensive experience with VMware and Windows Server, but quite limited experience with linux and feel like I should try and remedy that. Unfortunately I'm in that kind of ...

Certifications from Red Hat, Oracle and SUSE are tailored to environments where those Linux distributions are prevalent.